NASA Space Station On-Orbit Status 16 May 2018 - Spacewalk Mission Complete

The Earth passes 250 miles below spacewalker Ricky Arnold today while he is attached to the tip of the Canadarm2 robotic arm in the middle of swapping television camera gear. Credit: NASA.

Expedition 55 Flight Engineers Drew Feustel and Ricky Arnold of NASA completed the fifth spacewalk of this year at 2:10 p.m. EDT, lasting 6 hours, 31 minutes.

The two astronauts moved the Pump Flow Control Subassembly (PFCS) from a spare parts platform on the station's truss to the Dextre robotic arm. The PFCS drives and controls the flow of ammonia through the exterior portions of the station's cooling system. The team then removed and replaced a camera group and a degraded Space to Ground Transmitter Receiver Controller, and was also able to complete several get-ahead tasks.

Spacewalkers have now spent a total of 54 days, 16 hours and 40 minutes working outside the station in support of assembly and maintenance of the orbiting laboratory.

On-Orbit Status Report

US EVA 50 Pump and Flow Control Subassembly (PFCS) Relocate: Today Drew Feustel (EV-1) and Ricky Arnold (EV-2) executed US EVA #50. The following tasks were accomplished during the EVA:

A swap of the Pump/Flow Control Subassemblies (PFCS) between the Enhanced ORU Transfer Platform (EOTP) and External Stowage Platform (ESP)-1 locations
Removal and Replacement (R&R) of the Camera Port #13 (CP13) External Television Camera Group (ETVCG)
R&R of the degraded Space to Ground Transmitter Receiver Controller (SGTRC)
Installation of the S1 forward and aft RGB T-handles
S1-FHRC strut preps
ELC2 spare DCSU MLI removal and MLI skirt tie backs
The Phase Elapsed Time (PET) for US EVA #50 was 6h 31m.

Mobile Servicing System (MSS) Operations: This afternoon & evening, robotics controllers are performing post-EVA operations to unstow the Special Purpose Dexterous Manipulator (SPDM) with the Space Station Remote Manipulator System (SSRMS). Once the SPDM is unstowed, the MT will be translated from Worksite (WS) 6 to WS 8 in preparation for tomorrow night's transfer and install of the spare Pump Flow and Control Subsystem (PFCS) from the SPDMs Enhanced ORU Temporary Platform (EOTP) to the P6 long spacer. These activities will allow ground controllers to gain insight into the PFCS to perform a firmware update and a Flow Control Valve (FCV) functional checkout.

Today's Planned Activities
All activities are complete unless otherwise noted.

Internal Audio Subsystem (IAS) Extravehicular Activity (EVA) Communication Configuration
External Wireless Instrumentation System Network Control Unit EVA Inhibit
ISS HAM Radio and Video Power Down in Columbus
ISS HAM Radio Power Down in Service Module
EVA COTS UHF Communication Unit (CUCU) Verify off
Extravehicular Activity (EVA) In-Suit Light Exercise (ISLE) Preparation
Environmental Health System (EHS) - Compound Specific Analyzer-Combustion Products (CSA-CP) Extended Maintenance
Health Maintenance System (HMS) Automated External Defibrillator (AED) Inspection
Checking shutter closure on SM windows 6, 8, 9, 12, 13, 14 Note 5
FAZOPEREKHOD. Preparation steps and starting the experiment.
Countermeasures System (CMS) Advanced Resistive Exercise Device (ARED) Cylinder Flywheel Evacuation
DAN. Experiment Session
DAN. Assistance with the Experiment and Photography
Extravehicular Mobility Unit (EMU) Purge
Extravehicular Mobility Unit (EMU) In-Suit Light Exercise (ISLE) Prebreathe
Crewlock Depress
FAZOPEREKHOD. Closeout Ops.
FGB Gas Analyzer Vacuum Cleaning
Crewlock Post Depress
Crewlock Egress
Worksite Setup
High Definition Video Camera Assembly 2 Activation in High Definition Mode
СОЖ maintenance
PWS1 booting in safe mode
HDVCA2 SD setting and PWS1 power off post PWS1 Troubleshooting
Emergency Ammonia Hardware Move
Pump/Flow Control Subassembly (PFCS) Flight Support Equipment (FSE) Isolate
Release Failed Pump and Flow Control Subassembly (PFCS) from EOTP
Spare Pump/Flow Control Subassembly (PFCS) Relocate
CALCIUM. Experiment session 8
FAZOPEREKHOD. Preparation steps and starting the experiment.
Preventive Maintenance of SM Ventilation Subsystem. Group А
Install Failed Pump and Flow Control Subassembly (PFCS) on ESP-1
Monitoring RS structural shell surfaces using Multipurpose Eddy Current Device МВП-2К.
Pump and Flow Control Subassembly (PFCS) Worksite Cleanup
SSRMS EVA Support
SSRMS Setup
CP13 External TV Camera Group (ETVCG) R&R
SSRMS Cleanup
Space to Ground Transmitter Receiver Controller (SGTRC) R&R
Extravehicular Activity (EVA) Get Aheads
FAZOPEREKHOD. Closeout Ops.
Preparing to downlink data on monitoring structural element surface
IMS Update
Crewlock Ingress
Emergency Ammonia Hardware Stow
EVA Glove Photo Setup
Crewlock Pre Repress
Crewlock Repress
Extra Vehicular Activity (EVA) Post-EVA Activities
EVA Glove Photo Downlink
Photo/TV Extravehicular Activity (EVA) Camera Disassembly
Internal Audio Subsystem (IAS) Extravehicular Activity (EVA) Communication Deconfiguration
Photo/TV Extravehicular Activity (EVA) GoPro Downlink
External Wireless Instrumentation System (EWIS) Network Control Unit (NCU) Enable
Reminder HRF Generic Urine Collection
HRF Generic Urine Collection Male - Subject

Completed Task List Activities
None

Ground Activities
All activities are complete unless otherwise noted.
A/L Pre and Post EVA Ops
Port SARJ Locking/Unlocking
SPDM unstow and MT Translation from WS6 to WS8

Three-Day Look Ahead:
Thursday, 05/17: Cygnus OBT, Post EVA Ops (A/L deconfg/restow, EMU Water recharge, debrief), Team Task Switching, HXP2 Sample stow, HRF samples, Ku cable swap.
Friday, 05/18: JSL Lab & Node 2 router configuration, WRM water balance, SABL3 Relocate, HXP2 Sample attach 3, BEAM ingress for EHS sample collect and WTS sensor troubleshooting.
Saturday, 05/19: Weekly Housekeeping, Crew Off-Duty

QUICK ISS Status - Environmental Control Group:
Component - Status
Elektron - On
Vozdukh - Manual
[СКВ] 1 - SM Air Conditioner System ("SKV1") - Off
[СКВ] 2 - SM Air Conditioner System ("SKV2") - On
Carbon Dioxide Removal Assembly (CDRA) Lab - Operate
Carbon Dioxide Removal Assembly (CDRA) Node 3 - Standby
Major Constituent Analyzer (MCA) Lab - Operate
Major Constituent Analyzer (MCA) Node 3 - Idle
Oxygen Generation Assembly (OGA) - Process
Urine Processing Assembly (UPA) - Standby
Trace Contaminant Control System (TCCS) Lab - Full Up
Trace Contaminant Control System (TCCS) Node 3 - Off

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